2. From the family budgets of two middle class families given below, draw a suitable diagram.FamilyTotal IncomeExpenditure itemsFoodClothingRentFuelOthers TotalRs 4,000150080040060010004300Rs 6,0002000100060080012005600A B

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Answered: 2. From the family budgets of two…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Mariah Jacobsen is the marketing manager at ABC Electronics, a major consumer electronics supplier in the northwest. Over the last five years, sales of the company's flagship product - the Wizer Anonymizer (the WA) - have been 45000, 45500, 44500, 46000 and 44000 units. This rate of sales is considered average for the product over the last twenty years or so. Ms. Jacobsen believes that the distribution of the WA's sales is normal with a standard deviation of 1500 units. If she were asked to make a forecast of next year's sales to upper management, what is the likelihood that she would be correct if she predicts sales between 43000 and 46000?
Consider the following table.
Consider the following table.
Consider the following table.
1. The information in the following table shows the amount of sales and the profit from a small retail business in Whitby Ontario for the last 15 years. The years have not been provided as you will only need the amounts. Sales ($) (thousands) Profit ($) (thousands) 195 10 205 15 225 22 240 -10 255 25 300 39 265 24 345 55 295 32 335 37 380 48 405 55 355 50 390 48 410 55 a) Create a scatter plot of the data. Identify any outliers, if they occur. b) Sketch the line of best fit and determine its equation. A c) Describe any correlation you see between the variables. What conclusion could someone make based on the scatter plot? ( d) Identify whether you would use interpolation or extrapolation to predict the profit for the sales amount $500,000 and $230,000. e) Predict the profit for the sales amount $500,000 and $230,000.
d View Round-Trip Airline Ticket Cost $100-199.99 $200-299.99 $300-399.99 $400-499.99 $500-599.99 $600-699.99 $700-799.99 $800-899.99 $900-999.99 $1000 and above 4 # of Bookings 70 120 310 282 168 150 136 80 96 22
can you help me with a and b
1.) Below are prices per gallon of regular gasoline at various Shell and Mobil gas stations. Shell: $3.34 $3.56 $3.90 $4.01 $4.12 $3.36 $3.59 Mobil: $23.24 $3.25 $3.99 $3.99 $4.33 $2.99 $3.23 $2.90 $3.56 $3.12 At a= 0.01, test the claim that these two gas chains have the same average gas prices. a.) Use a hypothesis test b.) Use an appropriate confidence interval 1a.) H0: ______________________ H1: ___________________ t= ________________ P-value __________________ Conclusion: _________________________________ b.) t a/2 = ____________________ CI: ____________________________ Conclusion: ___________________________________________
Suppose that the (unit) price is P=$2. Using the information given by the table, how many units should be bought to maximize the buyer's gains from trade? 9 0 1 2 3 4 5 A. 1 unit. B. 2 units. C. 3 units. D. 4 units. O E. 5 units. V (q) $0 $10 $19 $22 $25 $26
5.
complete sentences) 1. A high school guidance counselor analyzed data from a sample of 300 community colleges throughout the United States. One of his goals was to estimate the annual tuition costs of community colleges in the United States. Describe the population and variable of interest to the guidance counselor (also explain the definitions).
6.

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2. From the family budgets of two middle class families given below, draw a suitable diagram. Family Total Income Expenditure items Food Clothing Rent Fuel Others Total A Rs 4,000 1500 800 400 600. 1000 4300 В Rs 6,000 2000 1000 600 800 1200 5600